Mouradian Guitar Co. is a Massachusetts-based luthier shop founded in 1983 by Jim Mouradian and his son Jon. Jim began repairing and building guitars and basses in the 1970s out of a space in his father's rug factory in Winchester, and later became a fixture of the Boston music scene through his repair bench at Cambridge Music Center in Porter Square.

The shop specializes in repair, restoration, hot-rodding, and custom builds for electric and acoustic guitars and basses, and also sells new and used instruments, amplifiers, and accessories. Mouradian-built and Mouradian-modified instruments have been used by Boston-area and touring professionals, with the shop's clientele including Joe Perry of Aerosmith, Chris Squire of Yes, and J. Geils.

After Jim Mouradian's death in 2017, his son Jon has continued operating the business, keeping the focus on bench work and custom instruments out of the shop's Massachusetts location.

Mouradian has 3 products cataloged on Equipboard, including Electric Basses and Solid Body Electric Guitars. Their gear is featured by 3 artists, with the strongest followings in Rock. Notable users include Pat Badger, Chris Squire, and Robbie Merrill.